Unlike
the other punches, the hook is a bent-arm punch. The power of
this punch is generated by a move known as a body whirl. In
order to perfect this punch, try to master each movement one
step at a time before going on to the next step.

Step 2:Shift your weight to your right leg while
simultaneously rotating your body to the right. Pivot on the
ball of your left foot so that your toes end up pointing
toward your right foot. You will notice that this movement
causes your arms to move along with it. Stop rotating when
your elbow reaches about the midpoint in front of you.

Step 3:Try this move again with a slight variation.
Shift your weight to the right foot. Pivot on the ball of you
left foot until your toes point toward your right foot.
Immediately, snap your left arm up into a ninety-degree angle.
Your left fist should stop at a midpoint in front of you.

This is called a lateral punch. The power of the hook comes
from the momentum of your body rotating and the resistance of
your foot pushing off of the floor. At this point, the left
side of your torso should be in line with the direction of
your punch.

Step 4:Return your left foot back to its original
position and bring your left fist back to its cheek level
position.

Some
things to remember:
The Right hook and left hook are virtually the same. The only
difference is that you rotate your body in opposite
directions.